.story-copy {
  align-self: start;
  width: 100%;
  min-height: 520px;
  padding-top: clamp(52px, 8vh, 86px);
}

.story-step {
  min-height: 18px;
}

.story-copy h1 {
  min-height: 118px;
  margin-bottom: 18px;
}

.story-text {
  min-height: 118px;
  margin-top: 0;
  margin-bottom: 0;
}

.story-formula {
  min-height: 66px;
  margin-top: 18px;
  transition: opacity .35s ease;
}

.story-formula.formula-fade {
  opacity: 0;
}

.story-formula.formula-hidden {
  display: none;
}

.story-language {
  display: flex;
  gap: 4px;
}

.story-language button {
  border: 0;
  padding: 2px 5px;
  background: transparent;
  color: #71808d;
  font: inherit;
  cursor: pointer;
}

.story-language button.active {
  color: #8fc8ff;
}

.story-shell {
  position: relative;
}

.story-header {
  border-bottom: 0;
  padding-bottom: 0;
}

.story-brand {
  margin: 0;
  color: #a9c9e8;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.story-site-link {
  position: absolute;
  right: 3vw;
  bottom: 22px;
  z-index: 2;
  color: #8fc8ff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .09em;
  text-decoration: none;
  text-transform: uppercase;
}

.story-site-link:hover,
.story-site-link:focus-visible {
  color: #f2f5f7;
}

.focus-value {
  font-weight: 400;
}

.story-copy.copy-fade-in > * {
  animation: copyFade .7s ease both;
}

/* Scene 2 reuses the already-drawn line: only opacity and the focal mark change. */
.portfolio-line.muted {
  stroke-dasharray: none !important;
  stroke-dashoffset: 0 !important;
  transition: opacity 1.15s ease !important;
}

.dot-caption {
  margin: 0 0 2px;
  gap: 34px;
  font-size: 15px;
  color: #b4c0ca;
  font-weight: 600;
}

.dot-caption i {
  width: 12px;
  height: 12px;
}

/* Keep the legend directly above the loan field instead of at the top of its grid. */
.dot-stage {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.loan-canvas {
  flex: 0 1 auto;
}

/* Keep the fixed sheet geometry while improving small-text legibility. */
.sheet-cell {
  font-size: 11px;
  font-weight: 400;
}

.sheet-cell.head {
  font-weight: 600;
}

.sheet-cell.input-col,
.sheet-cell.new-col {
  font-weight: 400;
}

.sheet-cell.head {
  font-weight: 600;
}

/* E18–E19 re-express existing columns; they are identities, not new outputs. */
.sheet-cell.identity-col {
  opacity: 1;
  color: #dbe8f2 !important;
  font-weight: 650;
  background: rgba(219, 232, 242, .05);
  border-left: 1px solid rgba(219, 232, 242, .22);
}

/* Table columns start from their previous visual role, then ease to the next one. */
.sheet-cell.column-transition-from-output {
  opacity: 1 !important;
  color: #f2a65a !important;
  background: rgba(242, 166, 90, .09) !important;
  border-left-color: rgba(242, 166, 90, .48) !important;
}

.sheet-cell.column-transition-from-input {
  opacity: 1 !important;
  color: #8fc8ff !important;
  background: rgba(143, 200, 255, .06) !important;
}

.sheet-cell.column-transition-from-dim {
  opacity: .14 !important;
  color: #cbd6df !important;
  background: transparent !important;
}

.sheet-cell.column-transition-from-active {
  opacity: 1 !important;
  color: #cbd6df !important;
  background: transparent !important;
}

/* Headers preserve their quieter starting treatment; otherwise they flash bright
   before a column fades or becomes an input. */
.sheet-cell.head.column-transition-from-active,
.sheet-cell.head.column-transition-from-dim {
  color: #8295a4 !important;
  background: #15212c !important;
}

/* One derived Period column fits without changing the sheet's visual footprint. */
.calc-sheet {
  width: 988px;
}

.sheet-row {
  grid-template-columns: 84px 42px 78px repeat(14, 56px);
  width: 988px;
  min-width: 988px;
}

.calc-sheet.compact-risk-sheet,
.calc-sheet.compact-risk-sheet .sheet-row {
  width: 596px;
  min-width: 596px;
}

.calc-sheet.compact-risk-sheet .sheet-row {
  grid-template-columns: 84px 42px 78px repeat(6, 56px);
}

.calc-sheet.risk-scale-sheet,
.calc-sheet.risk-scale-sheet .sheet-row {
  width: 932px;
  min-width: 932px;
}

.calc-sheet.risk-scale-sheet .sheet-row {
  grid-template-columns: 84px 42px 78px repeat(13, 56px);
}

.sheet-cell.risk-risk_base { color: #b9cad5 !important; background: rgba(185, 202, 213, .08); font-weight: 400; }
.sheet-cell.risk-contribution_age { color: #56b4e9 !important; background: rgba(86, 180, 233, .09); font-weight: 400; }
.sheet-cell.risk-contribution_cohort { color: #009e73 !important; background: rgba(0, 158, 115, .1); font-weight: 400; }
.sheet-cell.risk-contribution_period { color: #f2c66d !important; background: rgba(242, 198, 109, .1); font-weight: 400; }
.sheet-cell.risk-contribution_residual { color: #a5b1b9 !important; background: rgba(165, 177, 185, .06); font-weight: 400; }

.period-risk-table { width: min(850px, 100%); margin: auto; overflow: hidden; border: 1px solid #283b4b; border-radius: 7px; background: #0f1922; }
.period-risk-row { display: grid; grid-template-columns: 90px 80px repeat(6, 1fr); min-height: 45px; align-items: center; border-bottom: 1px solid #1f303d; opacity: 0; transform: translateY(7px); transition: opacity .4s ease, transform .4s ease; }
.period-risk-row.is-visible { opacity: 1; transform: none; }
.period-risk-row span { padding: 0 9px; color: #c8d4dd; font-size: 12px; font-variant-numeric: tabular-nums; text-align: right; }
.period-risk-row span:first-child { text-align: left; }
.period-risk-header { opacity: 1; transform: none; background: #172530; }
.period-risk-header span { color: #8fa2b1; font-size: 11px; font-weight: 700; }
.period-risk-ellipsis { opacity: 1; transform: none; min-height: 25px; border-bottom-color: #1a2934; }
.period-risk-ellipsis span { grid-column: 1 / -1; color: #708492; font-size: 18px; line-height: 1; text-align: center; }
.period-risk-row .risk-risk_base { color: #b9cad5; }
.period-risk-row .risk-contribution_age { color: #56b4e9; }
.period-risk-row .risk-contribution_cohort { color: #009e73; }
.period-risk-row .risk-contribution_period { color: #f2c66d; }
.period-risk-row .risk-contribution_residual { color: #a5b1b9; }

.portfolio-stack,
.effect-facets {
  display: block;
  width: 100%;
  height: auto;
  max-height: 68vh;
}

.portfolio-stack {
  max-height: none;
}

.portfolio-stack.axis-extend {
  animation: axisExtend 1.65s cubic-bezier(.22, .8, .25, 1) both;
}

.stack-segment {
  transform-box: fill-box;
  transform-origin: bottom;
  animation: stackReveal .42s ease both;
}

.stack-segment.stack-static {
  animation: none;
}

.stack-segment.stack-final-fade {
  transition: fill-opacity 1.55s ease;
}

.stack-marker { animation: fadeIn .45s ease both; }
.reconstructed-line { stroke-linecap: round; stroke-linejoin: round; animation: fadeIn .65s ease both; }
.reconstructed-line.reconstructed-final { opacity: 0; animation: fadeIn .9s ease 1.9s both; }
.stack-legend-label { fill: #b4c0ca; font-size: 13px; font-weight: 600; }
.facet-title { font-size: 12px; font-weight: 700; letter-spacing: .07em; }
.facet-line { stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 1; animation: drawFacet 1.45s ease forwards; }
.facet-line.facet-static { stroke-dashoffset: 0; animation: none; }

/* The last six scenes leave the sheet through one April cell, then aggregate it. */
.risk-ladder,
.ingredient-panel,
.period-cells,
.contribution-chart {
  width: min(860px, 100%);
  margin: auto;
}

.risk-ladder {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .55s ease, transform .55s ease;
}

.risk-ladder.is-visible {
  opacity: 1;
  transform: none;
}

.ingredient-panel {
  padding: 18px;
  border: 1px solid #273a4a;
  border-radius: 7px;
  background: #0f1922;
}

.ingredient-meta {
  display: grid;
  gap: 4px;
  margin-bottom: 18px;
}

.ingredient-meta span,
.ingredient-meta small,
.ingredient-field small {
  color: #8295a4;
  font-size: 11px;
}

.ingredient-meta span { text-transform: uppercase; letter-spacing: .09em; }
.ingredient-meta strong { color: #dbe8f2; font-size: 16px; }
.ingredient-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }
.ingredient-field { display: grid; gap: 5px; padding: 13px 11px; border-left: 2px solid #56b4e9; background: #14212c; opacity: 0; transform: translateY(8px); transition: opacity .4s ease, transform .4s ease; }
.ingredient-field.is-visible { opacity: 1; transform: none; }
.ingredient-field span { color: #8fc8ff; font-weight: 700; }
.ingredient-field strong { color: #e5edf3; font-size: 16px; font-variant-numeric: tabular-nums; }

.risk-source {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) minmax(280px, 1.3fr);
  gap: 18px;
  align-items: baseline;
  margin-bottom: 26px;
  padding: 13px 16px;
  border: 1px solid #273a4a;
  border-radius: 6px;
  background: #101a24;
}

.risk-source-meta span,
.risk-source-meta small,
.risk-raw span,
.risk-raw small {
  color: #8295a4;
  font-size: 11px;
}

.risk-source-meta { display: grid; gap: 4px; }
.risk-source-meta span { text-transform: uppercase; letter-spacing: .09em; }
.risk-source-meta strong { color: #dbe8f2; font-size: 15px; }
.risk-source-components { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.risk-source-components span { color: #91a9bb; font-size: 13px; }
.risk-source-components b { color: #dbe8f2; font-size: 13px; font-variant-numeric: tabular-nums; }
.risk-source-components sub { font-size: 9px; }

.risk-step {
  display: grid;
  grid-template-columns: 92px 1fr 68px;
  gap: 14px;
  align-items: center;
  min-height: 48px;
  opacity: .18;
  transition: opacity .45s ease;
}

.risk-step.active { opacity: 1; }
.risk-step-label { color: #b5c3ce; font-size: 12px; font-weight: 650; }
.risk-step-track { height: 9px; background: #182631; border-radius: 8px; overflow: hidden; }
.risk-step-track i { display: block; height: 100%; border-radius: inherit; background: var(--step-color); transition: width .7s ease; }
.risk-step strong { color: #e4edf3; font-size: 13px; text-align: right; font-variant-numeric: tabular-nums; }

.risk-raw {
  display: grid;
  grid-template-columns: 92px 68px 1fr;
  gap: 14px;
  align-items: baseline;
  margin-top: 20px;
  padding-top: 13px;
  border-top: 1px solid #273a4a;
}

.risk-raw strong { color: #f1f5f8; font-size: 14px; }

.period-cells-heading,
.period-summary {
  display: flex;
  justify-content: space-between;
  color: #9fb0bd;
  font-size: 12px;
  margin-bottom: 10px;
}

.period-cell {
  display: grid;
  grid-template-columns: 54px 112px 100px 1fr;
  gap: 12px;
  align-items: center;
  min-height: 54px;
  padding: 10px 14px;
  margin: 5px 0;
  border: 1px solid #203241;
  border-radius: 5px;
  background: #0f1922;
  color: #9fb0bd;
  font-size: 12px;
  opacity: 0;
  transform: translateX(14px);
  transition: opacity .45s ease, transform .45s ease;
}

.period-cell.is-visible { opacity: 1; transform: none; }
.period-cell strong { color: #dbe8f2; }
.period-cell-contrib { display: flex; align-items: center; gap: 3px; }
.period-cell-contrib i { display: inline-block; width: max(3px, var(--w)); height: 10px; border-radius: 2px; background: var(--c); }
.period-summary { margin-top: 16px; padding-top: 14px; border-top: 1px solid #273a4a; }
.period-summary strong { color: #dbe8f2; font-size: 13px; }

.sheet-row.not-focus-risk-row { opacity: .11; transition: opacity .45s ease; }
.sheet-row.focus-risk-row { position: relative; z-index: 2; box-shadow: inset 3px 0 0 #8fc8ff, inset 0 0 0 1px rgba(143, 200, 255, .35); background: rgba(143, 200, 255, .08); }
.sheet-row.focus-risk-row .sheet-cell { opacity: 1 !important; color: #dbe8f2; background: transparent; }
.sheet-row.focus-risk-row .sheet-cell.head { background: #15212c; }

.contribution-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  margin: 0 0 16px;
  color: #aabac6;
  font-size: 11px;
}

.contribution-legend span { display: inline-flex; gap: 6px; align-items: center; }
.contribution-legend i { width: 9px; height: 9px; border-radius: 2px; }
.contribution-row { display: grid; grid-template-columns: 78px 1fr 55px; gap: 12px; align-items: center; min-height: 49px; opacity: 0; transform: translateY(8px); transition: opacity .4s ease, transform .4s ease; }
.contribution-row.is-visible { opacity: 1; transform: none; }
.contribution-period { color: #aebdca; font-size: 12px; }
.contribution-body { position: relative; height: 18px; border-bottom: 1px solid #314250; }
.contribution-segment { position: absolute; top: 4px; height: 10px; min-width: 2px; border-radius: 2px; }
.raw-marker { position: absolute; top: -1px; width: 3px; height: 20px; background: #eff5f8; box-shadow: 0 0 0 1px #0b1118; }
.contribution-row > strong { color: #eff5f8; font-size: 12px; text-align: right; font-variant-numeric: tabular-nums; }
.contribution-note { margin: 16px 0 0; color: #8295a4; font-size: 11px; }

@keyframes copyFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (max-width: 1000px) {
  .story-copy {
    min-height: 0;
    padding-top: 22px;
  }
  .story-copy h1,
  .story-text {
    min-height: 0;
  }
  .risk-step,
  .risk-raw,
  .period-cell,
  .contribution-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  .risk-source { grid-template-columns: 1fr; }
  .risk-source-components { grid-template-columns: repeat(2, 1fr); }
  .ingredient-grid { grid-template-columns: repeat(2, 1fr); }
  .calc-sheet.compact-risk-sheet,
  .calc-sheet.compact-risk-sheet .sheet-row { width: 596px; min-width: 596px; }
  .calc-sheet.risk-scale-sheet,
  .calc-sheet.risk-scale-sheet .sheet-row { width: 932px; min-width: 932px; }
  .period-risk-table { overflow-x: auto; }
  .period-risk-row { min-width: 720px; }
  .period-cells-heading,
  .period-summary { gap: 8px; flex-direction: column; }
}

@keyframes stackReveal {
  from { opacity: 0; transform: scaleY(.05); }
  to { opacity: 1; transform: scaleY(1); }
}

@keyframes drawFacet {
  to { stroke-dashoffset: 0; }
}

@keyframes axisExtend {
  from { clip-path: inset(0 0 28% 0); opacity: .72; }
  55% { opacity: 1; }
  to { clip-path: inset(0 0 0 0); opacity: 1; }
}